Title 35PatentsRelease 119-73

§327 Settlement

Title 35 › Part PART III— - PATENTS AND PROTECTION OF PATENT RIGHTS › Chapter CHAPTER 32— - POST-GRANT REVIEW › § 327

Last updated Apr 6, 2026|Official source

Summary

Both the petitioner and the patent owner can ask the Patent Office to end a post‑grant review for that petitioner, unless the Office already decided the case on the merits. If the review ends this way, no estoppel under section 325(e) will apply to the petitioner or to the petitioner’s real party in interest or privy because of that filing. If no petitioner remains, the Office can end the review or go to a final written decision under section 328(a). Any deal between the patent owner and a petitioner to end the review must be written and filed with the Patent Office before the review ends. If a party asks, the agreement must be treated as business confidential, kept separate from the patent file, and shown only to federal agencies on written request or to others who show good cause.

Full Legal Text

Title 35, §327

Patents — Source: USLM XML via OLRC

(a)A post-grant review instituted under this chapter shall be terminated with respect to any petitioner upon the joint request of the petitioner and the patent owner, unless the Office has decided the merits of the proceeding before the request for termination is filed. If the post-grant review is terminated with respect to a petitioner under this section, no estoppel under section 325(e) shall attach to the petitioner, or to the real party in interest or privy of the petitioner, on the basis of that petitioner’s institution of that post-grant review. If no petitioner remains in the post-grant review, the Office may terminate the post-grant review or proceed to a final written decision under section 328(a).
(b)Any agreement or understanding between the patent owner and a petitioner, including any collateral agreements referred to in such agreement or understanding, made in connection with, or in contemplation of, the termination of a post-grant review under this section shall be in writing, and a true copy of such agreement or understanding shall be filed in the Office before the termination of the post-grant review as between the parties. At the request of a party to the proceeding, the agreement or understanding shall be treated as business confidential information, shall be kept separate from the file of the involved patents, and shall be made available only to Federal Government agencies on written request, or to any person on a showing of good cause.

Legislative History

Notes & Related Subsidiaries

Statutory Notes and Related Subsidiaries

Effective Date

Section effective upon the expiration of the 1-year period beginning Sept. 16, 2011, and applicable only to patents described in section 3(n)(1) of Pub. L. 112–29 (35 U.S.C. 100 note), with certain exceptions and limitations, see section 6(f)(2), (3) of Pub. L. 112–29, set out as a note under section 321 of this title.

Reference

Citations & Metadata

Citation

35 U.S.C. § 327

Title 35Patents

Last Updated

Apr 6, 2026

Release point: 119-73